T L Elliot1, D B Downey, S Tong, C A McLean, A Fenster. 1. Department of Diagnostic Radiology and Nuclear Medicine, University Hospital, University of Western Ontario, London, Canada.
Abstract
RATIONALE AND OBJECTIVES: We assessed the ability of a three-dimensional (3D) ultrasound imaging system to measure accurately prostate volume. METHODS: Multiple two-dimensional ultrasound images of cadaver prostates scanned in a water bath were reconstructed into three-dimensional (3D) images. The volumes of the prostates were calculated from these 3D images and compared with the actual volumes. Multiple 3D ultrasound volume readings were evaluated for precision. RESULTS: The slope of the best-fit line correlating 3D ultrasound estimated volume and true volume was 1.006 +/- 0.007. The average error was 0.36 +/- 1.17 cm3; the coefficient of determination (r2), which is the measure of the straight-line relationship, was .9997; and the standard error was 1.15 cm3. CONCLUSION: Three-dimensional ultrasound images accurately reflect true prostate volumes measured in vitro.
RATIONALE AND OBJECTIVES: We assessed the ability of a three-dimensional (3D) ultrasound imaging system to measure accurately prostate volume. METHODS: Multiple two-dimensional ultrasound images of cadaver prostates scanned in a water bath were reconstructed into three-dimensional (3D) images. The volumes of the prostates were calculated from these 3D images and compared with the actual volumes. Multiple 3D ultrasound volume readings were evaluated for precision. RESULTS: The slope of the best-fit line correlating 3D ultrasound estimated volume and true volume was 1.006 +/- 0.007. The average error was 0.36 +/- 1.17 cm3; the coefficient of determination (r2), which is the measure of the straight-line relationship, was .9997; and the standard error was 1.15 cm3. CONCLUSION: Three-dimensional ultrasound images accurately reflect true prostate volumes measured in vitro.
Authors: T Rago; W Bencivelli; M Scutari; C Di Cosmo; C Rizzo; P Berti; P Miccoli; A Pinchera; P Vitti Journal: J Endocrinol Invest Date: 2006-05 Impact factor: 4.256
Authors: Feimo Shen; Katsuto Shinohara; Dinesh Kumar; Animesh Khemka; Anne R Simoneau; Priya N Werahera; Lu Li; Yujun Guo; Ramkrishnan Narayanan; Liyang Wei; Al Barqawi; E David Crawford; Christos Davatzikos; Jasjit S Suri Journal: J Ultrasound Med Date: 2008-06 Impact factor: 2.153